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The Effects of Cross-Linked/Uncross-Linked Electrospun Fibrinogen/Polycaprolactone Nanofibers on the Proliferation of Normal Human Epidermal Keratinocytes Publisher



Mirzaeiparsa MJ1 ; Ghanbari H1 ; Bahrami N2, 3 ; Hadadiabianeh S4 ; Faridimajidi R1
Authors
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Authors Affiliations
  1. 1. Department of Medical Nanotechnology, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, 1417755469, Iran
  2. 2. Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Oral and Maxillofacial Surgery Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Plastic Surgery, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran

Source: Journal of Polymer Engineering Published:2018


Abstract

The aim of this study was an investigation on the proliferation rate of normal human epidermal keratinocytes (NHEK) on the cross-linked and uncross-linked fibrinogen/polycaprolactone (Fbg/PCL) nanofibers to determine a suitable scaffold for skin tissue engineering. Nanofibrous scaffolds were prepared by electrospinning of different weight ratios of Fbg to PCL and were analyzed as morphology, surface chemical properties and cytocompatibility by scanning electron microscopy (SEM), attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy and the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, respectively. The diameters of the blended uncross-linked scaffolds were in the range of 124±43 nm-209±155 nm. Cross-linking of scaffolds with glutaraldehyde did not make a significant change in the diameter of blended scaffolds in 16 h. Cross-linking also improved the tensile strength and weight loss rate of scaffolds. However, cross-linking demonstrated an unfavorable effect on the attachment and proliferation of NHEK cells. The proliferation study revealed that uncross-linked scaffolds containing 50% and 70% Fbg provide a better environment for the growth of NHEK cells, and can be considered promising scaffolds in tissue engineering applications. © 2018 Walter de Gruyter GmbH, Berlin/Boston 2018.